CODEWITHSUNDEEP
javaandroid
Sabbir Ahmed
Sabbir Ahmed

Reputation: 2327

How to handle progress dialog correctly in android?

I am new in android and java. I am in a trouble in implementing progress dialog correctly.

I have a code like this

   ProgressDialog dialog= new ProgressDialog(Main.this);
   dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
   dialog.setMax(100);
   dialog.show();
   MY METHOD WHICH GRABS DATA FROM INTERNET;
   dialog.dissmiss();

but by implementing this, my method runs well but no progress dialog is visible, again when i comment out the dismiss method, the dialog doesnt stop and i had to force close the app,then how to use this dialog? in aditional dont want to bring any thread here, is there any way to use dialog without any thread? Thanks

Upvotes: 0

Views: 1177

Answers (3)

Rashmi.B
Rashmi.B

Reputation: 1787

I personally prefer AsyncTask for progress dialog.

In your onPreExecute, create your above code. In doInBackground, do your background tasks and in onPostExecute display an alertdialog saying work done !

Upvotes: 1

AnujAroshA
AnujAroshA

Reputation: 4811

Yes, you no need to use Thread class. You can use AsyncTask instead. Start the progress dialog when you call the AsyncTask, dismiss it in the postExecute method.

Upvotes: 1

Egor
Egor

Reputation: 40193

Problem here is that any long running tasks such as fetching data from the Internet must be run inside a separate thread, otherwise you're likely to get an ANR if your code runs for more then 5 seconds. The ideal solution in my opinion is to implement an AsyncTask: it lets you run tasks in a separate thread and helps you easily update your UI thread, showing ProgressDialogs or ProgressBars to let your users know that your app is currently busy. Simply place all your ProgressDialog initialization code inside the onPreExecute() method of the AsyncTask, and the dialog.dismiss() call to onPostExecute(). Hope this helps.

Upvotes: 4

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